Fix logger docs

Author: José Valim

Makefile

@@ -134,7 +134,7 @@ docs: compile ../ex_doc/bin/ex_doc
 	$(call DOCS,Mix,mix,Mix)
 	$(call DOCS,IEx,iex,IEx)
 	$(call DOCS,ExUnit,ex_unit,ExUnit)
-	$(call DOCS,ExUnit,logger,Logger)
+	$(call DOCS,Logger,logger,Logger)
 
 ../ex_doc/bin/ex_doc:
 	@ echo "ex_doc is not found in ../ex_doc as expected. See README for more information."

lib/logger/lib/logger/backends/console.ex

@@ -1,4 +1,6 @@
 defmodule Logger.Backends.Console do
+  @moduledoc false
+
   use GenEvent
 
   def init(_) do

lib/logger/lib/logger/error_handler.ex

@@ -1,4 +1,6 @@
 defmodule Logger.ErrorHandler do
+  @moduledoc false
+
   use GenEvent
 
   require Logger